Between the ending of the Great War and the start of the Second World War in 1939, the Royal Navy remained the largest in the world. But with the League of Nations seeming to offer a solution to all future conflicts, a country weary of war and without an obvious enemy there seemed no need for a large battlefleet. The strategic focus shifted eastwards, to Japan, with its growing battlefleet as the new threat to the British Empire and to the Royal Navy's supremacy.From 1924 a strategic plan, War Memorandum (Eastern), was written and refined. The plan called for the Royal Navy, still the